Troubleshooting Outlook connectivity to Exchange Online

OFFICIAL STEP 0

Now. This is one of those “Windows things”. Especially in case you are here because Outlook is repeatedly asking for a password. Which you know is the right one. So let’s check this one and keep it out of the way.

Go to your Control Panel.Find and open “Credential Manager”

Click on “Windows Credentials”

Find and erase any credential that mentions email in it. Email that you are trying to connect to with your Outlook, that is.

If you’re an Office 365 user using Outlook 2010, you need to set up your desktop before you can set up Outlook to access your account. For more information, see Use my current Office desktop apps with Office 365.

For Office 2007 users

Please update to Office 2013. It is cheap and it works. Save yourself a lot of time.

NOT WORKING?

On the affected workstation, use a web browser to go to https://testconnectivity.microsoft.com/, and then click the Office 365 tab. Select the Outlook Anywhere (RPC over HTTPS) test. Provide your email address, Microsoft account name (UserID), and your Office 365 credentials. Make sure that you do not change the default setting of Use Autodiscover to detect server settings.

The Last Alternative?

One can setup connection to the O365 Exchange Server using non-default setup. That means : POP and IMAP access. For instructions please jump HERE .